*{margin: 0;padding: 0;list-style-type: none;text-decoration: none;}
.div_first{width:600px;height:600px;position: relative;}
.div_second{width: 600px;height: 450px;cursor: pointer;position:relative;}
.div_second img{width: 100%;height: 100%;}
.div_move{width:300px;height:225px;filter:alpha(opacity=30);background: #fff;position: absolute;left: 0;top:0;display: none;opacity: 0.3;}
.div_third{width:600px;height: 200px;position: relative;overflow:hidden;background-color: #00cccc}
.div_third ul{width: 720px;height:160px;margin: 20px 0 20px 45px;position: absolute;left: 0;}
.div_third li{width: 160px;height: 120px;float: left;cursor: pointer;margin: 15px 0;border: 5px solid #0f0;}
.div_third .select{border: 5px solid #f00;}
.div_third img{width: 100%;height: 100%;}
.div_third span{width: 45px;height: 200px;text-align: center;line-height: 200px;background: #000;color:#fff;cursor: pointer;display: block;}
.div_third .left{position: absolute;left:0;}
.div_third .right{position: absolute;right: 0;}
.div_fourth{width: 600px;height: 450px;overflow: hidden;position: absolute;left: 700px;top:0;display: none;}
.div_fourth img{width: 1200px;height: 900px;left:0;top:0;position: absolute;}


